Quick definitions from WordNet (commit)▸ verb:cause to be admitted; of persons to an institution ("After the second episode, she had to be committed")▸ verb:perform an act, usually with a negative connotation▸ verb:make an investment▸ verb:give entirely to a specific person, activity, or cause ("She committed herself to the work of God")▸ verb:confer a trust upon ("I commit my soul to God")
▸ Word origin